class_docstr: Constrain to the Euclidean sphere of any dimension.
code: def check(self, value):
      eps = torch.finfo(value.dtype).eps
      norm = torch.linalg.norm(value, dim=-1)
      error = (norm - 1).abs()
      return error < self.reltol * eps * value.size(-1) ** 0.5
  
imports: from torch.distributions.constraints import *
  import torch
  from torch.distributions.constraints import Constraint, independent, lower_cholesky, positive, positive_definite
  from torch.distributions.constraints import __all__
label_desc: Use image node_id 1 for calling the _Sphere obj's underlying member method code with example usage: obj.check(value) and returns: unknown